Are there any free Taint Analysis tools available?

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I sometimes see here at BTCtalk comments on how the Bitcoin mixers actually perform their task, how well they mask the trail between BTC addresses. One way to examine how well they keep a user's (new, receiving) address unlinked to the sending address is by measuring "taint". I am only slightly familiar with taint, but blockchain.info a few years ago had a nice tool that calculated taint for free. In general, the "better" a mixer was, the less taint showed up between the receiving address and the original address before mixing.

The blockchain.info tool was very nice! But some three (?) years ago they took it down.

Is there any free taint analysis tool available (ideally easy to use)? For me, blockchain.info taking that tool away was a real loss...